Another way is to replace the phone's SIM card with one that allows for real-time monitoring. SMSes can then be sent to the phone, which in many countries are free to receive. If the monitoring reveals outgoing data traffic after SMSes are received, the phone could be hacked. It's also possible to check if the GPRS connection icon lights up after a message is received, Niemela said.
Niemela offered some defenses against mobile spyware: Keep the OS up to date, as manufacturers are usually working to counter new devious software. The use of a mobile antivirus program is also prudent, he said. People should also use password protection to block access if someone gets a hold of the device.
Administrators can also regularly "flash" phones to wipe off malware, as well as ensuring that phones only install signed applications.
And when the phone is out of a person's hands, another option is to put the device in a tamper-proof container. But "for most people, this is way too James Bond," Niemela said.
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